burim:bash:udemy:introduction
IDE - Visual studio code
- shell types supported in your system
root@zllart3:~# cat /etc/shells /bin/ash /bin/bash /bin/rbash
- tell the script it is a bash
#! /bin/bash echo "Hello World" #this is a comment after the "#"
- Variables
two types system and user variables system variables are predefined and are in capital letters
- example system variables
echo "Hello World" #this is a comment after the "#" echo $BASH echo $BASH_VERSION echo $PWD echo $HOME echo Our shell name is $BASH echo Our shell version name is $BASH_VERSION echo Our home directory is $HOME echo Our current working directory is $PWD
- User defined variables, user defined variables may not start with numbers.
name=Mark VALUE=10 echo The name is $name echo value $VALUE
burim/bash/udemy/introduction.txt · Last modified: 2020/02/25 16:25 by burim